The Airbus A340 and the Boeing
747 are both four engines jumbo jets although they differ greatly
by their silhouette. The 747 has a distinctive look with its
front upper deck. It also appears more massive.

Both planes have distinct main
landing gears. Wheels support the fuselage at its center. Two
groups of four wheels are thus added to the Boeing 747 which
bears 16 main tires. The Airbus A340 has a lone central gear
with 2 wheels, for a total of 10 main tires.

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